检索范围:
排序: 展示方式:
Xue LI,Pengjing LI,Dong WANG,Yuqiu WANG
《环境科学与工程前沿(英文)》 2014年 第8卷 第6期 页码 895-904 doi: 10.1007/s11783-014-0736-z
关键词: Xin'anjiang River multivariable statistical analysis temporal variation spatial variation water quality
Spatio-temporal variations of water quality in Yuqiao Reservoir Basin, North China
Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA
《环境科学与工程前沿(英文)》 2015年 第9卷 第4期 页码 649-664 doi: 10.1007/s11783-014-0702-9
关键词: Fuzzy comprehensive assessment multivariate statistical analysis water quality
Factor analysis for the statistical modeling of earthquake-induced landslides
Jeng-Wen LIN, Meng-Hsun HSIEH, Yu-Jen LI
《结构与土木工程前沿(英文)》 2020年 第14卷 第1期 页码 123-126 doi: 10.1007/s11709-019-0582-y
关键词: earthquake factor analysis slope landslides statistical modeling
Statistical analysis of residential building energy consumption in Tianjin
Jihong LING,Luhui ZHAO,Jincheng XING,Zhiqiang LU
《能源前沿(英文)》 2014年 第8卷 第4期 页码 513-520 doi: 10.1007/s11708-014-0327-5
关键词: energy intensity indoor thermal comfort residential building survey statistical analysis energy conversation
Jingqing Hu, Jie Qiao, Deying Kang, Baoyan Liu
《医学前沿(英文)》 2011年 第5卷 第2期 页码 203-207 doi: 10.1007/s11684-011-0138-6
盛美萍
《中国工程科学》 2002年 第4卷 第6期 页码 77-84
文章综合导纳分析法、经典统计能量分析方法和经典功率流理论的各自优点,提出适合复杂耦合系统的统计能量分析方法,为研究实际机械结构之间的振动传递规律、复杂机械系统的声辐射特性提供理论依据,为实际工程结构的振动隔离、噪声治理提供理论指导。文章首次提出统计能量分析参数必须统一定义,将影响实际机械结构相互之间能量传递的若干要素各自分离,并引入相应的参数分别开展研究。利用理论研究的成果,发展后的统计能量分析首次应用于水下航行器振动和噪声特性分析,预报了水下航行器的振动传递规律和辐射噪声级。理论分析与实验测试结果符合较好。文章指出了水下航行器噪声治理的方向。
Paramveer SINGH; Kanish KAPOOR
《结构与土木工程前沿(英文)》 2022年 第16卷 第10期 页码 1315-1335 doi: 10.1007/s11709-022-0853-x
关键词: geopolymer concrete mix design fly ash response surface methodology compressive strength stress−strain
Statistical process control with intelligence using fuzzy ART neural networks
Min WANG, Tao ZAN, Renyuan FEI,
《机械工程前沿(英文)》 2010年 第5卷 第2期 页码 149-156 doi: 10.1007/s11465-010-0008-y
关键词: statistical process control (SPC) fuzzy adaptive resonance theory (ART) histogram control chart time series analysis
Ali Reza GHANIZADEH, Morteza RAHROVAN
《结构与土木工程前沿(英文)》 2019年 第13卷 第4期 页码 787-799 doi: 10.1007/s11709-019-0516-8
关键词: full-depth reclamation soil-reclaimed asphalt pavement blend Portland cement unconfined compressive strength multivariate adaptive regression spline
DUAN Wei
《能源前沿(英文)》 2008年 第2卷 第1期 页码 107-115 doi: 10.1007/s11708-008-0018-1
关键词: Probability sensitivity sensitivity analysis number cross-section statistical
ZHOU Xiaopeng, SU Xueli, SUN Yan
《化学科学与工程前沿(英文)》 2007年 第1卷 第2期 页码 103-112 doi: 10.1007/s11705-007-0020-x
关键词: fundamental importance single-component equilibria acceptable fitting hemoglobin chromatographic separation
三峡库区香溪河流域多变量生态水文风险的不确定性分析 Article
Yurui Fan,Guohe Huang,Yin Zhang,Yongping Li
《工程(英文)》 2018年 第4卷 第5期 页码 617-626 doi: 10.1016/j.eng.2018.06.006
本研究基于copula函数开发了一种多变量生态水文风险评估框架,用于分析三峡库区香溪河流域极端生态水文事件的发生频率。通过马尔可夫链蒙特卡罗(MCMC)方法量化边缘分布及copula函数中参数的不确定性,并基于后验概率揭示联合重现期的内在不确定性,同时可进一步得到双变量及多变量风险的概率特征。研究结果显示所得概率模型的预测区间可很好地匹配观测值,尤其对洪水持续时间而言。同时,“AND”联合重现期的不确定性随着单个洪水变量重现期的增加而增加。此外,低设计流量及高服务年限可能导致高洪水风险且伴随大量不确定性。
Hua Tao, Pinjing He, Yi Zhang, Wenjie Sun
《环境科学与工程前沿(英文)》 2017年 第11卷 第6期 doi: 10.1007/s11783-017-0945-3
关键词: Municipal solid waste Incineration Circulating fluidized bed Load change Multivariate outlier detection
Image-based fall detection and classification of a user with a walking support system
Sajjad TAGHVAEI, Kazuhiro KOSUGE
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 427-441 doi: 10.1007/s11465-017-0465-7
The classification of visual human action is important in the development of systems that interact with humans. This study investigates an image-based classification of the human state while using a walking support system to improve the safety and dependability of these systems. We categorize the possible human behavior while utilizing a walker robot into eight states (i.e., sitting, standing, walking, and five falling types), and propose two different methods, namely, normal distribution and hidden Markov models (HMMs), to detect and recognize these states. The visual feature for the state classification is the centroid position of the upper body, which is extracted from the user’s depth images. The first method shows that the centroid position follows a normal distribution while walking, which can be adopted to detect any non-walking state. The second method implements HMMs to detect and recognize these states. We then measure and compare the performance of both methods. The classification results are employed to control the motion of a passive-type walker (called “RT Walker”) by activating its brakes in non-walking states. Thus, the system can be used for sit/stand support and fall prevention. The experiments are performed with four subjects, including an experienced physiotherapist. Results show that the algorithm can be adapted to the new user’s motion pattern within 40 s, with a fall detection rate of 96.25% and state classification rate of 81.0%. The proposed method can be implemented to other abnormality detection/classification applications that employ depth image-sensing devices.
关键词: fall detection walking support hidden Markov model multivariate analysis
Abdelmadjid SI SALEM,Souad AIT TALEB,Kamal AIT TAHAR
《结构与土木工程前沿(英文)》 2015年 第9卷 第2期 页码 154-162 doi: 10.1007/s11709-015-0296-8
关键词: design GFRP-Jacket polymer tube test reliability analysis
标题 作者 时间 类型 操作
Assessment of temporal and spatial variations in water quality using multivariate statistical methods
Xue LI,Pengjing LI,Dong WANG,Yuqiu WANG
期刊论文
Spatio-temporal variations of water quality in Yuqiao Reservoir Basin, North China
Yuan XU,Ruqin XIE,Yuqiu WANG,Jian SHA
期刊论文
Factor analysis for the statistical modeling of earthquake-induced landslides
Jeng-Wen LIN, Meng-Hsun HSIEH, Yu-Jen LI
期刊论文
Statistical analysis of residential building energy consumption in Tianjin
Jihong LING,Luhui ZHAO,Jincheng XING,Zhiqiang LU
期刊论文
Analysis on the distinguishing features of traditional Chinese therapeutics and related statistical issues
Jingqing Hu, Jie Qiao, Deying Kang, Baoyan Liu
期刊论文
Development of mix design method based on statistical analysis of different factors for geopolymer concrete
Paramveer SINGH; Kanish KAPOOR
期刊论文
Statistical process control with intelligence using fuzzy ART neural networks
Min WANG, Tao ZAN, Renyuan FEI,
期刊论文
Modeling of unconfined compressive strength of soil-RAP blend stabilized with Portland cement using multivariate
Ali Reza GHANIZADEH, Morteza RAHROVAN
期刊论文
Probability strength design of steam turbine blade and sensitivity analysis with respect to random parameters
DUAN Wei
期刊论文
Analysis of statistical thermodynamic model for binary protein adsorption equilibria on cation exchange
ZHOU Xiaopeng, SU Xueli, SUN Yan
期刊论文
Performance evaluation of circulating fluidized bed incineration of municipal solid waste by multivariate
Hua Tao, Pinjing He, Yi Zhang, Wenjie Sun
期刊论文
Image-based fall detection and classification of a user with a walking support system
Sajjad TAGHVAEI, Kazuhiro KOSUGE
期刊论文